Cyberattack on Danfoss Refrigeration Systems Spoils Fresh Food at French Supermarkets
Hackers breached Danfoss cooling control systems across hundreds of French supermarket locations, triggering automatic defrost cycles that spoiled perishable goods.
A major cyberattack targeting refrigeration control systems has affected hundreds of supermarkets across France, causing internal temperatures to rise and leading to widespread spoilage of perishable food items.
Breach Targets Danfoss Cooling Controllers
According to available details, attackers managed to compromise Danfoss refrigeration control systems deployed across an estimated 250 to 350 supermarket locations in France. The incident impacted several prominent retail chains, including:
- Intermarché
- Coopérative U
- Leclerc
Mechanics of the Incident and Resulting Damage
During the intrusion, the attackers remotely commanded the refrigeration systems to activate their automatic defrost function. This deliberate manipulation caused storage temperatures to rise, spoiling large quantities of fresh food products that rely on consistent cooling for safety and preservation.
Why This Matters
This incident represents a rare and severe attack on operational technology (OT/IoT). Unlike attacks limited to digital data theft, this incident directly targeted physical infrastructure, disrupting the public food supply chain and resulting in immediate, tangible economic losses for retailers.
What to Watch Next
Supermarket operators, OT/IoT control engineers, and critical infrastructure cybersecurity specialists should closely monitor security configurations for internet-connected industrial controls to prevent unauthorized remote manipulations from disrupting physical operations.
Source: BleepingComputer
